2142525240 has 48 divisors (see below), whose sum is σ = 6963208200. Its totient is φ = 571339968.

The previous prime is 2142525211. The next prime is 2142525241. The reversal of 2142525240 is 425252412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142525241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2975370 + ... + 2976089.

Almost surely, 2^2142525240 is an apocalyptic number.

2142525240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2142525240 is an abundant number, since it is smaller than the sum of its proper divisors (4820682960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2142525240 is a wasteful number, since it uses less digits than its factorization.

2142525240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5951476 (or 5951469 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 2142525240 is about 46287.4198892096. The cubic root of 2142525240 is about 1289.1654237643.

Adding to 2142525240 its reverse (425252412), we get a palindrome (2567777652).

It can be divided in two parts, 21425 and 25240, that added together give a triangular number (46665 = T₃₀₅).

The spelling of 2142525240 in words is "two billion, one hundred forty-two million, five hundred twenty-five thousand, two hundred forty".